/*
    Copyright 2006 Andrew Wilkinson <andrew@indiegigs.co.uk>

    This file is part of libgp2x.

    libgp2x is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    libgp2x is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with libgp2x; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

#include <stdlib.h>
#include <string.h>
#include <time.h>

#include "gp2x_hardware.h"

void GP2x_hardware_screen() {
static void* screen = NULL;
    GP2x_register(GP2x_REG_SCREEN_SYNC) = 0;
    SDL_Delay(10);
    GP2x_register(GP2x_REG_SCREEN_SYNC) = 1 << 4;

    SDL_LockSurface(SDL_screen);
    SDL_screen->pixels = (void*)((GP2x_register(0x290E) | (GP2x_register(0x2910) << 16)) + GP2x_940_OFFSET - 0x2000000);
    if(SDL_screen->pixels != screen) {
        /*printf("Detected flip! %p\n", SDL_screen->pixels);*/
        screen = SDL_screen->pixels;
    }
    SDL_UnlockSurface(SDL_screen);
    SDL_Flip(SDL_screen);
}
